Ditch Witch RT120 - Manual (Page 192)

RT120 Operator’s Manual
Service - 191
As Needed
Charging Procedure (Engine Off)
1. Park service vehicle close to disabled equipment but do not allow vehicles to touch. Engage parking
brake in both vehicles.
2. Turn the ignition switch to the OFF position in both vehicles, and turn off all electrical loads. Disconnect
the machine controller.
3. Inspect battery in disabled vehicle (B) for signs of cracking, bulging, leaking, or other damage.
Connect red positive (+) booster cable clamp to positive (+) post (2) of battery in disabled vehicle first.
4. Connect the other red positive (+) booster cable clamp to positive (+) post of battery (A) in the service
vehicle.
5. Connect black negative (-) cable clamp to negative (-) post of battery (A) in service vehicle.
6. Connect the other black negative (-) cable clamp to the engine or frame ground on the disabled
vehicle, at least 12” (305 mm) from the failed battery, as shown.
7. Operate service vehicle engine at 1500-2000 rpm for a few minutes to build an electrical charge in the
failed battery.
8. Stop engine in service vehicle.
9. Remove booster cables from the service vehicle, black negative (-) clamp first. Do not allow clamps to
touch.
10. Remove black negative (-) cable clamp from the disabled engine or frame ground first.
11. Remove red positive (+) cable clamp from the disabled vehicle positive (+) battery post last.
12. Reconnect machine controller and try to start disabled vehicle.
If the disabled vehicle did not start, check for loose or corroded battery cable connections. Poor
connections will prevent current from charging the failed battery. Clean terminals and posts if necessary
and repeat steps above.
IMPORTANT: Some equipment may have a positive booster cable terminal (1) located externally.
If so equipped, connect red positive (+) booster cable clamp to terminal.